Home / 1,046.19-1,558.35-998.81

Finding the Fourth Proportional to 1,046.19, 1,558.35 and 998.81

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Solution

The fourth proportional to 1,046.19, 1,558.35 and 998.81 is: 1,487.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,046.19 : 1,558.35 = 998.81 : x
  2. Step 2: Convert to fraction form
    1,046.19/1,558.35 = 998.81/x
  3. Step 3: Cross multiply
    1,046.19x = 1,558.35 × 998.81
  4. Step 4: Simplify right side
    1,046.19x = 1,556,495.56
  5. Step 5: Solve for x
    x = 1,556,495.56/1,046.19
  6. Step 6: Final answer
    x = 1,487.78

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.